1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga2289 [7]
3 years ago
9

HURRY! I need help on my exam. (10pts!)

Mathematics
1 answer:
Anna [14]3 years ago
7 0

Answer:

oof

Step-by-step explanation:o o o f

You might be interested in
Which of the following could be the side lengths of a right triangle
ASHA 777 [7]

The lengths of a right triangle's three sides can be expressed as 24, 32, and 40.

Let's work our way through the solution. According to the right triangle formula, a triangle's hypotenuse square equals the sum of its base square and its altitude square.

How to determine a right triangle's sides?

If leg an is absent, change the equation to its form when leg an is present on one side and compute the square root: a = (c2 - b2).

Leg b must be unknown otherwise. b = √(c² - a²)

The equation for hypotenuse c is: c = (a2 + b2)

to learn more about right triangle's sides refer to:

brainly.com/question/3223211

#SPJ13

7 0
2 years ago
[10] In the following given system, determine a matrix A and vector b so that the system can be represented as a matrix equation
irina1246 [14]

Answer:

y=-\frac{158}{579}

Step-by-step explanation:

To find the matrix A, took all the numeric coefficient of the variables, the first column is for x, the second column for y, the third column for z and the last column for w:

A=\left[\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right]

And the vector B is formed with the solution of each equation of the system:b=\left[\begin{array}{c}3\\-3\\6\\1\end{array}\right]

To apply the Cramer's rule, take the matrix A and replace the column assigned to the variable that you need to solve with the vector b, in this case, that would be the second column. This new matrix is going to be called A_{2}.

A_{2}=\left[\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right]

The value of y using Cramer's rule is:

y=\frac{det(A_{2}) }{det(A)}

Find the value of the determinant of each matrix, and divide:

y==\frac{\left|\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right|}{\left|\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right|} =\frac{158}{-579}

y=-\frac{158}{579}

7 0
4 years ago
Solve for X<br><br> 8^3x-10 =4^6x-27<br><br> Thanks in advance!
dlinn [17]

8^{3x-10}=4^{6x-27}\\\\(2^3)^{3x-10}=(2^2)^{6x-27}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{3(3x-10)}=2^{2(6x-27)}\qquad\text{use distributive property}\\\\2^{(3)(3x)+(3)(-10)}=2^{(2)(6x)+(2)(-27)}\\\\2^{9x-30}=2^{12x-54}\iff9x-30=12x-54\qquad\text{add 30 to both sides}\\\\9x=12x-24\qquad\text{subtract 12x from both sides}\\\\-3x=-24\qquad\text{divide both sides by (-3)}\\\\\boxed{x=8}

6 0
4 years ago
The sum of the three interior angles of a triangle is 180°. Suppose one angle is 68° and the remaining two angles are the same m
disa [49]
Answer: 56 degree

Step-by-Step Explanation:

Let measure of unknown angle be ‘x’

One angle = 68 degree
Sum of all angles is 180 => 68 + 2x = 180

Therefore,
68 + 2x = 180
2x = 180 - 68
2x = 112
x = 112/2
=> x = 56

Therefore, the measure of the missing angles is 56 degrees each.
6 0
2 years ago
Read 2 more answers
If you were to solve this inequality,<br> do you need to flip the Inequality symbol?
Pavlova-9 [17]

Answer: no

I would not flip the inequality symbol

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x: 12=-2(x+8)
    6·2 answers
  • HELP HELP GOD PLZ HELP WHAT IS 23 X 3/4
    11·2 answers
  • Can someone help me with question 4:) anything is appreciated (8th grade math)
    7·1 answer
  • What is the mean income of the following three people surveyed? Person A: S22,000, Person B: $31,000, Person :
    8·1 answer
  • If a library has 3,000 nonfiction books how many books does it have in all?
    10·2 answers
  • Số táo của An, Bình, Chi là như nhau. An cho đi 17 quả , Chi cho đi 19 quả thì lúc này số táo của Chi gấp 5 lần tổng số táo còn
    5·1 answer
  • In 2010, there were approximately 6 million girls living in Orange City. In 2011, the population was down to 4 million girls. Ho
    6·1 answer
  • Shannon participated in a national math contest by taking a math test. The test results followed a normal distribution with a me
    11·1 answer
  • Please help me! I'll give u extra points​
    14·1 answer
  • Katie spent m minutes practicing her trumpet on
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!